Blue Nepal Kyanite 2x4-3x5mm Graduated Faceted Rondelle Necklace - 15-16 Inch Green Garnet it is born in the

it is born in the molten rock of the upper mantle

The two most popular classes of Australian Opal are Black Opal mined in Lightning Ridge and Fire Opal

and this phenomenon is thought to be due to impurities of yttrium or organic matter within the crystal lattice

There are 37 different mica minerals

also known as Melody's Stone

Blue Nepal Kyanite 2x4-3x5mm Graduated Faceted Rondelle Necklace - 15-16 Inch Green Garnet it is born in theKyanite often occurs as long, bladed, striated crystals, transparent or translucent with a pearly luster. An aluminum silicate mineral, it may appear in white, pink, yellow, orange, green, blue, gray and black. In addition to its value as a gemstone, Kyanite is also extremely useful in industrial applications due to its high heat resistance. It is often used in kiln furniture and foundry molds, as well as for brake shoes, grinding wheels and cutting